A model boat is made to a scale of 1:20. This scale can be applied to any units, so 1mm measured on the model is 20mm on the actual boat, 1 cm measured on the model is 20cm on the actual boat. a) If the 1:20 model boat is 15cm wide, how wide is the actual boat? b) If the boat has a mast of height 4m, how high is the mast on the model?

show us the graphs dude

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

yes

step-by-step explanation:

yes

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step-by-step explanation: